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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
| commit | ccd992355df7192993c666236047820244914598 (patch) | |
| tree | f00fea65147227b7743083c6148396f74cd66935 /src/runtime/msan_arm64.s | |
| parent | Initial commit. (diff) | |
| download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip | |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/runtime/msan_arm64.s')
| -rw-r--r-- | src/runtime/msan_arm64.s | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/runtime/msan_arm64.s b/src/runtime/msan_arm64.s new file mode 100644 index 0000000..b9eff34 --- /dev/null +++ b/src/runtime/msan_arm64.s @@ -0,0 +1,73 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build msan + +#include "go_asm.h" +#include "textflag.h" + +#define RARG0 R0 +#define RARG1 R1 +#define RARG2 R2 +#define FARG R3 + +// func runtime·domsanread(addr unsafe.Pointer, sz uintptr) +// Called from msanread. +TEXT runtime·domsanread(SB), NOSPLIT, $0-16 + MOVD addr+0(FP), RARG0 + MOVD size+8(FP), RARG1 + // void __msan_read_go(void *addr, uintptr_t sz); + MOVD $__msan_read_go(SB), FARG + JMP msancall<>(SB) + +// func runtime·msanwrite(addr unsafe.Pointer, sz uintptr) +// Called from instrumented code. +TEXT runtime·msanwrite(SB), NOSPLIT, $0-16 + MOVD addr+0(FP), RARG0 + MOVD size+8(FP), RARG1 + // void __msan_write_go(void *addr, uintptr_t sz); + MOVD $__msan_write_go(SB), FARG + JMP msancall<>(SB) + +// func runtime·msanmalloc(addr unsafe.Pointer, sz uintptr) +TEXT runtime·msanmalloc(SB), NOSPLIT, $0-16 + MOVD addr+0(FP), RARG0 + MOVD size+8(FP), RARG1 + // void __msan_malloc_go(void *addr, uintptr_t sz); + MOVD $__msan_malloc_go(SB), FARG + JMP msancall<>(SB) + +// func runtime·msanfree(addr unsafe.Pointer, sz uintptr) +TEXT runtime·msanfree(SB), NOSPLIT, $0-16 + MOVD addr+0(FP), RARG0 + MOVD size+8(FP), RARG1 + // void __msan_free_go(void *addr, uintptr_t sz); + MOVD $__msan_free_go(SB), FARG + JMP msancall<>(SB) + +// func runtime·msanmove(dst, src unsafe.Pointer, sz uintptr) +TEXT runtime·msanmove(SB), NOSPLIT, $0-24 + MOVD dst+0(FP), RARG0 + MOVD src+8(FP), RARG1 + MOVD size+16(FP), RARG2 + // void __msan_memmove(void *dst, void *src, uintptr_t sz); + MOVD $__msan_memmove(SB), FARG + JMP msancall<>(SB) + +// Switches SP to g0 stack and calls (FARG). Arguments already set. +TEXT msancall<>(SB), NOSPLIT, $0-0 + MOVD RSP, R19 // callee-saved + CBZ g, g0stack // no g, still on a system stack + MOVD g_m(g), R10 + MOVD m_g0(R10), R11 + CMP R11, g + BEQ g0stack + + MOVD (g_sched+gobuf_sp)(R11), R4 + MOVD R4, RSP + +g0stack: + BL (FARG) + MOVD R19, RSP + RET |